Business Description

Overview United Airlines Holdings, Inc. (together with its consolidated subsidiaries, "UAL" or the "Company") is a holding company and its wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, "United"). United's shared purpose is "Connecting People. Uniting the World." United has the most comprehensive route network among North American carriers, including U.S. mainland hubs in Chicago, Denver, Houston, Los Angeles, New York/Newark, San Francisco and Washington, D.C. As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United's operating revenues and operating expenses comprise nearly 100% of UAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words "we," "our," "us," and the "Company" in this report for disclosures that relate to all of UAL and United. The Company's principal executive office is located at 233 South Wacker Drive, Chicago, Illinois 60606 (telephone number (872) 825-4000). The Company's website is located at www.united.com and its investor relations website is located at ir.united.com. The information contained on or connected to the Company's websites is not incorporated by reference into this Form 10-K and should not be considered part of this or any other report filed with the U.S. Securities and Exchange Commission ("SEC"). The Company's filings with the SEC, including annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports, as well as UAL's proxy statement for its annual meeting of stockholders, are accessible without charge on the Company's investor relations website, as soon as reasonably practicable, after we electronically file such material with, or furnish such material to, the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act. Such filings are also available on the SEC's website at www.sec.gov. Operations The Company transports people and cargo throughout North America and to destinations in Asia, Europe, Africa, the Pacific, the Middle East and Latin America. UAL, through United and its regional carriers, operates across six continents, with hubs at Chicago O'Hare International Airport ("ORD"), Denver International Airport ("DEN"), George Bush Intercontinental Airport ("IAH"), Los Angeles International Airport ("LAX"), Newark Liberty International Airport ("EWR"), San Francisco International Airport ("SFO"), Washington Dulles International Airport ("IAD") and A.B. Won Pat International Airport ("GUM"). All of the Company's domestic hubs are located in large business and population centers, contributing to a large amount of "origin and destination" traffic. The hub and spoke system allows us to transport passengers between a large number of destinations with substantially more frequent service than if each route were served directly. The hub system also allows us to add service to a new destination from a large number of cities using only one or a limited number of aircraft. As discussed under Alliances below, United is a member of Star Alliance, the world's largest alliance network. United Next. In 2025 the Company continued to make progress with its United Next plan to align its network and product with the potential of its hubs while remaining focused on protecting the safety of its employees and customers and providing a superior customer experience. United Next aims to increase customer choice and win brand-loyal customers by offering a diversity of products ranging from Basic Economy to Polaris and growing our leading global network, which the Company believes will lead to diverse revenue streams for the Company. As part of its United Next growth plan, the Company expects to 3 Table of Contents take delivery of over 630 new narrow- and widebody aircraft by the end of 2034. The new aircraft that the Company has taken delivery of to date have increased the Company's gauge, scale and connectivity as well as improved the Company's fuel efficiency.…